:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #17202a;
  --muted: #667085;
  --line: #e4e8ef;
  --brand: #116274;
  --brand-strong: #0b4654;
  --soft: #e8f4f6;
  --warning: #8a5a00;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(17, 98, 116, 0.13), transparent 32rem),
    linear-gradient(180deg, #fbfcfe 0%, var(--bg) 42%, #eef3f7 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  background: linear-gradient(135deg, #23b4d2, #116274);
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: 0 10px 28px rgba(17, 98, 116, 0.22);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.95rem;
}

.hero,
.content {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 28px;
  align-items: stretch;
}

.eyebrow {
  color: var(--brand);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  margin: 0 0 14px;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: -0.035em;
}

h1 {
  font-size: clamp(2.45rem, 6vw, 5rem);
  margin: 0 0 18px;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  margin: 0 0 18px;
}

h3 {
  font-size: 1.1rem;
  margin: 24px 0 8px;
}

.lead {
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  color: var(--muted);
  max-width: 720px;
  margin: 0 0 26px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-weight: 750;
  box-shadow: 0 12px 28px rgba(17, 98, 116, 0.24);
}

.button.secondary {
  background: var(--card);
  color: var(--brand);
  border: 1px solid var(--line);
  box-shadow: none;
}

.panel,
.doc,
.card {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: 0 24px 70px rgba(20, 38, 54, 0.08);
}

.panel {
  padding: 28px;
}

.panel ul,
.doc ul {
  padding-left: 1.25rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.card {
  padding: 22px;
}

.card p,
.doc p,
.doc li {
  color: var(--muted);
}

.content {
  max-width: 900px;
}

.doc {
  padding: clamp(24px, 5vw, 48px);
}

.doc header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
  margin-bottom: 24px;
}

.meta {
  color: var(--muted);
  font-size: 0.94rem;
}

.notice {
  background: var(--soft);
  color: var(--brand-strong);
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(17, 98, 116, 0.16);
}

.warning {
  background: #fff7e6;
  color: var(--warning);
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(138, 90, 0, 0.18);
}

.site-footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 26px 24px 46px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.92rem;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .content {
    padding-top: 34px;
  }

  .hero-grid,
  .cards {
    grid-template-columns: 1fr;
  }
}